drivers/media/dvb/frontends/lgdt3304.h

   1 /*
   2  *  Driver for DVB-T lgdt3304 demodulator
   3  *
   4  *  Copyright (C) 2008 Markus Rechberger <mrechberger@gmail.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.=
  20  */
  21
  22 #ifndef LGDT3304_H
  23 #define LGDT3304_H
  24
  25 #include <linux/dvb/frontend.h>
  26
  27 struct lgdt3304_config
  28 {
  29         /* demodulator's I2C address */
  30         u8 i2c_address;
  31 };
  32
  33 #if defined(CONFIG_DVB_LGDT3304) || (defined(CONFIG_DVB_LGDT3304_MODULE) && defined(MODULE))
  34 extern struct dvb_frontend* lgdt3304_attach(const struct lgdt3304_config *config,
  35                                            struct i2c_adapter *i2c);
  36 #else
  37 static inline struct dvb_frontend* lgdt3304_attach(const struct lgdt3304_config *config,
  38                                            struct i2c_adapter *i2c)
  39 {
  40         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  41         return NULL;
  42 }
  43 #endif /* CONFIG_DVB_LGDT */
  44
  45 #endif /* LGDT3304_H */